Transmission Characteristics of 1D Metallodielectric Photonic Crystal with a Defect Rod (original) (raw)

Transmission Properties of 1D Defect Metallic-Dielectric Photonic Crystals

2016

In this study, we have theoretically investigated transmission properties of transverse electric fields at visible region frequencies in one dimensional defect Metallic-Dielectric photonic crystals. We examined the effect of photonic crystals thickness, layer numbers, layer refractive indexes and defects on transparency. We use OptiFDTD software for simulations. OptiFDTD software uses finite-different time-domain method.

The optical transmission characteristics in metallic photonic crystals

Materials Chemistry and Physics, 2010

We theoretically studied electromagnetic wave propagation in a one-dimensional metal/dielectric photonic crystal (1D MDPC) consisting of alternating metallic and dielectric materials by using the transfer matrix method in visible and infrared regions. We have investigated the photonic band gap by using four kinds of metals: silver, lithium, gold and copper. We discuss the details of the calculated results in terms of the thickness of the metallic layer and different kinds of metals, and the plasma frequency. Our results have a potential for applications in optical devices because it is easy and cheap to manufacture.

Defect structures in metallic photonic crystals

Applied Physics Letters, 1996

We have investigated metallic photonic crystals built around a layer-by-layer geometry. Two different crystal structures ͑face-centered-tetragonal and tetragonal͒ were built and their properties were compared. We obtained rejection rates of 7-8 dB per layer from both metallic crystals. Defect modes created by removing rods resulted in high peak transmission ͑80%͒, and high quality factors ͑1740͒. Our measurements were in good agreement with theoretical simulations.

Dispersion of Propagating and Evanescent Modes in 1D Metallodielectric Photonic Crystal

… Forum TELFOR 2006, 2006

We analyzed frequency dependence of propagating and evanescent modes in alternating metaldielectric strata with nanometric thickness. We determined dispersion for various material pairs and thickness values. An excellent agreement with our experiments was obtained when both propagating and evanescent waveguiding were simultaneously taken into account. The obtained results are applicable in the design of different dedicated optical filters, in surface plasmon resonance-based sensorics, but also for left-handed metamaterials and in subwavelength imaging.

Characteristics Of 1D Photonic Crystal Sensor With Two Defects

2010

Numerical simulations of electromagnetic wave propagation inside a one-dimensional (1D) photonic crystal with two defect rods are presented. The simulations were carried out by applying Finite Difference Time Domain (FDTD) method to solve the corresponding Maxwell equations. The result shows a linear dependence of time average energy density with respect to the variation of second defect refractive index, which can be potentially used for refractive index sensing platform. On the other hand, a non-linear dependence of time average energy density is obtained by varying the radius of the second defect.

Electromagnetic Wave Propagation Characteristics in a One-Dimensional Metallic Photonic Crystal

Journal of Nonlinear Optical Physics & Materials, 2008

We theoretically studied electromagnetic wave propagation in a one-dimensional metal/dielectric photonic crystal (1D MDPC) consisting of alternating metallic and dielectric materials by using the transfer matrix method. We performed numerical analyses to investigate the propagation characteristics of a 1D MDPC. We discuss the details of the calculated results in terms of the electron density, the thickness of the metallic layer, different kinds of metals, and the plasma frequency.

Large omnidirectional band gaps in metallodielectric photonic crystals

Physical Review B, 1996

Using a finite-difference time-domain method, we study the band-structure and transmission properties of three-dimensional metallodielectric photonic crystals. The metallodielectric crystals are modeled as perfect electrical conducting objects embedded in dielectric media. We investigate two different lattice geometries: the face-centered-cubic ͑fcc͒ lattice and the diamond lattice. Partial gaps are predicted in the fcc lattice, in excellent agreement with recent experiments. Complete gaps are found in a diamond lattice of isolated metal spheres. The gaps appear between the second and third bands and their sizes can be larger than 60% when the radius of the spheres exceeds 21% of the cubic unit cell size. A possible fabrication scheme for this structure is proposed and transmission calculations are performed. ͓S0163-1829͑96͒02040-1͔

Numerical Studies on Electromagnetic Waves Properties in Metallic-Dielectric Photonic Crystal

Journal of Electromagnetic Analysis and Applications, 2011

We have performed numerical analyses to investigate the propagation characteristics of a simple-one dimensional metallic-dielectric structure. Several different metals have been studied (aluminum, gold, copper, and silver). Copper gives the smallest absorption and aluminum is more absorptive. We have compared between the transmittance of these structures with different metals and the same dielectric material. Also we used these different metals with the same layer thickness, incidence angels, number of layers and the same electromagnetic waves range.

Comparative Study of the One Dimensional Dielectric and Metallic Photonic Crystals

Optics and Photonics Journal, 2012

The optical transmission properties of two types of photonic crystals have been analyzed by using the transfer matrix method. The first one is the dielectric photonic crystal (DPC), and the second is the metallic photonic crystal (MPC). We found the dielectric and metallic photonic crystals have different transmission spectra. The effect of the most parameters on the transmission spectra of the dielectric and metallic photonic crystals has been studied.